What I have: 2006 2.0 GHz, 2 GB RAM. Its an oldie and really showing its age. I was an early adopter and didn't really consider the future when I bought this. The battery no longer works, and the optical drive can only read not write. Problem: Trying to decide between a 24" iMac 3.06 GHz, 4 GB RAM, 640 GB HD vs. a mac pro, 2.66GHz Quad-Core Nehalem, 3GB RAM, 640 GB HD Budget: $2500US What I need: To explain this I will describe my workflow. Normally I use have Photoshop, Adobe Bridge, TweetDeck, Stickies, Cyberduck, Adium, Rapidweaver, Firefox, & Safari, open all at the same time. I usually run Lightroom & InDesign on their own because of the amount of proc power and mem they take up. I know that sounds crazy but I am a photographer and small time web designer. I need a computer that will run these things well and much better than my current computer. I want to know what would really be better for my needs an iMac or a baseline Mac Pro. The reason I ask is the MBP I own now is all I know. I have no experience with anything more powerful than my 2GHz Core Duo machine. Any help would be greatly appreciated. Thanks.